Abstract: Years of investigations have shown that very stiff track structures on railroad bridges and abrupt stiffness changes between the bridge and the approach are two factors that can accelerate the performance problems associated ...

Abstract: This paper presents the development of a new design method for selecting granular layer thickness for railroad track. Design of an adequate granular layer thickness is intended to prevent two common railroad subgrade ...

Abstract: A new design method has been developed to determine the granular layer thickness required to prevent and remedy railroad subgrade failures caused by repeated traffic loads. The design method emphasizes the effect of repeated ...

Abstract: A method has been developed for the estimation of resilient modulus of compacted fine‐grained subgrade soils. The method takes into account the influence of soil physical state, stress state, and soil type. The effect of ...

Abstract: Improvements to existing methods in the literature have been made for predicting cumulative plastic deformation for fine-grained subgrade soils. The soil deviator stress, number of stress applications, soil physical state, ...